Hands-on practice
Pick a lab and run it in your browser. No sign-in, no installs. Progress saves locally on your device, so you can close the tab and pick up where you left off later.
CompTIA Network+
An adaptive single-page trainer covering 45 high-miss concepts across 8 scaffolded modules (subnetting, routing, DNS, cloud, VLANs, wireless, and ops drills). Each item closes when you answer it correctly twice in a row.
MSIT 643 · Security Mechanisms
An interactive encryption and firewall playground built for a Lecture 7 teaching demo: symmetric vs. asymmetric encryption (with a mailbox-slot and a paint-mixing Diffie-Hellman analogy), a click-and-drag firewall rule lab, and a Lecture 7-grounded quick reference sheet.
More labs in development. Check back soon.